What is sarin?

Secretary of State John Kerry says the U.S. has evidence that Syria used sarin in last month's deadly attack in Damascus. The CDC says the chemical weapon, which was first developed as a pesticide, is the most volatile nerve agent.

http://www.wgrz.com/video/2642559896001/1/What-is-sarinhttp://bc_gvpc.edgesuite.net/img/963482463001/201309/1386/963482463001_2642356594001_thumbnail-for-video-2642534752001.jpg?pubId=963482463001What is sarin?Secretary of State John Kerry says the U.S. has evidence that Syria used sarin in last month's deadly attack in Damascus. The CDC says the chemical weapon, which was first developed as a pesticide, is the most volatile nerve agent.sarin nervevpcbestnewsbestwhat is sarinkerry syriasarin gasInternational newsvpcsyriasyria sarinmeet the press kerry01:04